An infamous delinquent is told that he would die soon unless he dates this girl from another school.
From Chibi Manga:

If you don't date her, you'll die! That was the prediction made to that delinquent boy, but what will be his destiny...?
Read the rest as this manga is under a different name: Inochi Mijikashi, Koi seyo Furyou Shounen!

The series Life Is Short, Delinquent Youngster, Love! has been licensed, it is not available in Manga Fox.